I've got a 91 sunbird 2 litre throttle body injection will not start ,had low fuel pressure,changed fuel pump,turn key to run position and fuel pump primes tbi but will not start.got spark.squirt a little gas in tbi car starts and runs fine, good driveability ,shut off car try to start immediately after no start unless you squirt some fuel in tbi.changed fuel pump relay no difference.not showing any codes.pulled fuel pressure regulator and turned motor over lots of fuel.checked tps got 5 volt refence and graduated voltage as you turn throttle.got 12 volts to injector at both terminals red wire and blue (backprobe).question,at fuel pump relay pink/black stripe is power in,grey power to fuel pump,black/white stripe ground,green/white stripe computer ?Is green/white pwer to computer or power from computer?when checking voltage at green/white stripe wire at fuel pump relay got 12 volts when key in run position while fuel pump primes then relay clicks no voltage at geen/white stripe wire is this right? can't get injector to open while turning over motor drop a little fuel in tbi fires right up.all fuses and fusible links are good.where are the ground points in fuel system wiring harness? any help asap would be appreciated thanks seanrocks.